Self-closing cock.



PATENTED JAN-=8, 190?.

H. MUELLER.

SELF GLOSENG COOK.

APPLIGATION FILED OGT.11.1905.

2 SHEETS-SHEET 1.

.d AA 1 1 JPATENTBD JAN. a. 1907.

H. MUBLLBBg; SELF CLOSING COOK. APPLICATION FILE-D 001". 11, 1905.

2 SHBETS-SHEET 2 Inventor. jeiz yflf adlar 72115 afiwn y UNITED STATES PATENT oFFIcn.

HENRY MUELLER, OF DECATUR, ILLINOIS, ASSIGNOR TO H MUELLER- MANUFACTURING OO.. OF DECATUR, ILLINOIS, A CORPORATION OF ILLINOIS.

SELF-CLOSING COCK.

Patented ilan. s, 1907.

To all whorl t it may concern;

- Beit known that I, HENRY MUELLER, a

resident of the city of Decatur, county of ,Macon, and State of Illinois, have invented certain new and useful Improvements in Self-Closing Oocks, of which the following is a s ecification.

his invention relates to cocks in which the valves are closed against fluid-pressure by arly applicable to basin-cocks; and one'of its objects is detailed description.

tical section t ough parts In the drawings forming part of this specification, Figure 1 is a vertical section on line X in Fig.2. Fig. 2 is a plan of a cock embodying my im rovements.

the cock, showing an adjustment of the valve-closing sprin different from that shown in Fig. 1 and ustrating in side elevation the inclined planes used in opening the valve against the tension of the s ring. Fig. 4 is a plan of the under surface 0 the tension-controller. Fi 5 is a plan of the under surface of the dis that is clamped to hold the tension-con- Fig. 6 is a diagram of a fiber washer or gasket that coacts with the disk shown in Fig. 5 to m a more perfect joint.. stem. Fig. 8 is an end view of the valvestem, and Fig. 9 is a section through the valve-"o em'ng collar.

3 said valve bemg enlarged to form a shoulder j The s ell or body of the cock is shown at 1, and it has a cylindrical upward extension which is internally screw-threaded through outand ,is externally screw-threaded at its 11 t e extension of the cock-body are shown at per end. The internal screw-threads of 2, and the external threads are shown at 3, in Fig. 1.- A spout or nozzle 1 is formed on a side of the cock-body, as shown in Fig. 2, and a passage-way leading upward through the cock to the s out has a valve-seat 4. The valve-stem 5 has a valve 6 on its lower end,

for the valve-closing spring, and it is reduced at 'about'its longitudinalcenter to form the Fi 3 is a ver- Fig.- 7 is an elevation of the valve-' shoulder 8. The reduced part of the valvestem 7 is threaded at its'upper end, as shown at 10, and it has a pair of grooves 11 lengthwise of its threaded part and on opposite sides thereof. A longitudinal groove 9 is formed in the larger part of the valve-stem, and the valve'6 is rovided with a rubber bearing-surface whic 1 contacts with the seat 4. A nut 12 is screwed onto the threaded end of the valve-stem, and a set-screw 13 extends radially through a side of the nut with its oint engaging one of the grooves 11 and wit its head flush with the face of the nut.

A cap-shapedtension-controller 15 is apertured to fit around the larger part 5 of the valve-stem. It has a rigid projection 16, which extends radially into the groove 9 of the valverstem, and it is screw-threaded externally to conform to the internal threads 2 of the cock-body. The tension-controller 15 is recessed in its under surface to receive the upper end of the valve-closing spring 18, and it has notches 17 in its internal circumference which form passages for the ready escape of water from the space above the tension-controller.

A disk 19 fits slidably on the larger part 5' of the valve stem, and it has a rigid pro ection 20, which extends radially into the groove 9 of the stem. A gasket 21 of fiber or the like, fits against the under surface of the disk- 19 and rests upon the upper end of the cylindrical extension of the cock-body. A nut 23 has a ring extension, which is internally screw-three. ed to engage the external screw-threads on the upper end of the cylindrical. extension of the cock-body, and it provides a broad surface in contact with the up per surface of disk 19. The nut 23 fits the smaller part 7 of the valve-stem, and it is recessed from below, as shown at 24, to receive the upper end of the larger part of the valvestem when the valve, is raised from contact with its seat." A cyl ndrical upward extension 25 of nut 23 is .ecessed from above to form a packing-box and is internally screwthreaded to receive the packing-screw 27. Packing 26 is placed in the recess in the cylindrical upward extension of the nut and is held compactly therein by the screw 27. Out- Zde the cylinder 25 are formed two pairs of inclined planes, one pair of which is shown at 30 in Fig. 3. Each pair of inclines converge upwardly to form an apex, and the inclines I are used in opening the valve of the cock by convertingrotary motion in the handle-collar intolongitudinal motion in the valve stem.

A collar 28 is bored to fit the part 7 of the valve-stem. It is provided with cross extensions 29, which are shaped to form a han die or finger-hold for manipulating the collar, and it also has inclined planes 31, which are arranged to conform to the inclines 30 of nut 23 and which coact therewith to open the valve. The spring 18 tends tohold the valve 7 closed, and when the valve is closed the col-- lar 28' occupies the position with relation to nut 23 that is shown in Figs. 1 and 3. When it is desiredto open the valve, the collar 28 is turned on its axis by means of the cross-handle,the inclined surfaces of the collar ride up the inclines of the nut, thus raising the collar, and the upward motion of the collar is imparted to the valve-stem through nut 12.-

' The recess 24 of nut 23- extends above the shoulder 8' of the valve-stern a distance somewhat less than the elevation of the inclined planes, and the-shoulder strikes the upper surface of therecess and stops rotation of the collar before the inclines of the collar are raised high enough to ride over the inclines of the nut 23. y

The nut 12 is intended to he looked on the valve-stem with the iubher in the end of the valve resting on the'seat i andsustaining the nut 12 slightly above the upper surface of the collar 28, as shown in the drawings; but the rubber wili in time become Wornor C0111- pacted to an extent sufficient to cause the nut 12 to sustain the valve-stem'withthe ruhher out of contact with the seat and leaking Will of course result;v i/Vhen this occurs, the

set-screw 13' lSlOOSGhQd', the nut 1'2 is screwed u ward on the valve-stem until the'valve is properly eated, and the sehs'orew made to engage one or the other of the grooves 1 1 .The reo'ves' 1&1 are pieced one on each side'of sureexisting any certain case the Work of v tension' controller i5 is turned with the valveo' ening the veilye' be needlessly hard.

0 provide proper tension in any particular case, the nut 23 is loosened enough to permit the disk 19 to: turn, the valve-stern is turned by means of a wrench applied to nut 12, the

, stem and screwed up or down in the cylindrical' extension of the cock-body, depending upenfwhethr the spring is to be loosened or turning on the valve-stem during operation motion and prevents manipulation of the nose tightened, and after the proper tension is ohtained the nut 23 is screwed down firmlyupon the locking-disk 19.

The setscrew13holds the nut 12 from of the valve, and during adjustment of the tension-controller thep-rojection 16 compels the tension-controller to rotate with the valve-stem, the groove 9 permits the tensioncontroller to move lengthwise of the valvestem, and when the disk 19 is clamped be:

tween nut 23 and the upper end of the cylin-.

drical extension of the cook-body thepr'oje'd' 2' tion 20 locks the valve-stem against rotary valve-stern from disadjusting the tensioncontroller.

Any Water passing the tension-controller will readily escape throu h passage-Ways formed by notches 17 an will notbe retained to slowly dribble from the spout after the valve is closed.

Y'Vhat I claim as new is 1. In a spring-closed cook, the comhina tion of a body having a cylindrical extension interiorly screwthreaded, a valveseat in the body, a' valve--stem protruding axially through the cylindrical extension of the cock-body and having a longitudinal groove, a valve on the inner end of the valve-stem adapted to the vaive-seat, an exteriorlythreaded tensioncontroller screwed into the cylindrical" extension of the cock-body and fitted slidahiy on the valve-stem, a projection of the tension-controller engaging the groove of he valve stem', a spring on the valve-stem, between the valve thereof and the tension-controller, means for opening the valve against the tension of the spring, means forrotating the valve-stem to screw the tension oontroller in or out of the cockhody,- and a lock to hold the stem against rotation inftlie cocihody and prevent disadjuetinentof the'tension controller. v 2. In aspring-closed cock, the combineti ontof a cock-body having a cylindrical ex tension exteriorly and interiorly screW- threaded, a valveeseat in the body, a valvestemprotruding axially through the cylizi drical extension of the cockbody and having a longitudinal groove, a valve on the inner end ofthe valve-stein, adapted to the valve- 1 seat,- an eX-teriorly threaded tension-conti'oller screwed into the cylindrical extension of the coclchody and fitted slidably on the' I2O valve-stein, a projection of the tension-controller engaging the groove of the VitlVEF stem,a"spring on the valve-sternbet-ween the valve thereof and the tension-controller, a

nuthored to'fit the-valvestem and having an interiorlyecrew-threadecl ring extension adapted to be screwed onto the end of the cylindrical extension'of the cook, a disk en'- circling the values-temvi' ith' its edge between the end of the;

ylihdiical extension of the cock-body and the nut screwed onto said cylindrical extension, a projection of the disk engaging the groove 'of the valve-stem,

means for moving the valve-stem lengthwise against-tension of the spring,- and means for turning the stem on its axis.

tension exteriorly and interiorly screw- -thre aded, a valve-seat in the body, a valvestem protruding axially through the cylindricalextension of the cock-body and having a lon 'tudinalrgroove, a valve on the inner endo the valve-stem, adapted to the valve- "seat, an exteriorly-threaded tension-controL ler screwed into the c lindrical extension of the' cock-body and tted. sli'dably on the valve-stem, a projection. of the tension-com troller engaging the groove. of the valvestem," a spring on the valve-stem between the valvefihereof and the tension-controller, a nut bored to fit the valve-stem and having an interiorlyscrew-threaded ring extension ---ad-apted to be screwed onto the cylindrical extension of the cock, a disk encircling the valve-stem, with its erimeter between the end of the cylindrica extension of the .cock body andthe nut screwed onto said cylin drical extension, a projection of. the disk engai'ng the groove of the valve stem, a nut e jon'the protruding end-of the valvestem, a collar journaled on the valve-stem between the nut screwed onto the cock-body and the nut locked on the valve-stem, said collar having a handle or finger-hold for r0- tary manipulation, and. inclined planes on the under side of the collar and the upper side of the'nut screwed onto the cock-body, whereby the valve-stem is moved longitudinally as the collar is turned. v

4. Ina spring-closed cook, the combination of a cock-body, a valve-seat in the body, a valvestem having a valve on its inner end a and having its outer end screw-threaded and longitudinally grooved, a nut on the outer .end of 'the valve-stem, a set-screw extending through the nut and engaging a groove of the stem, a spring to hold the va ve closed, a collar. rotatably movable on the valve-stem between the cock-body and the nut on the threaded end thereof, and inclined planes on the collar ada ted to convert the rotary motion of the collar into motion lengthwise of its axis and to impart said longitudinal motion to the valve-stem through the nut, substantially as described.

.In testimony whereof I sign my name in the presence of two subscribing witnesses.

HENRY MUELLER. Witnesses;

JOHN L. WADDELL, L. P. GRAHAM. 

